package com.gulimall.authserver.controller;

import com.alibaba.fastjson.TypeReference;
import com.gulimall.authserver.feign.MemberFeignService;
import com.gulimall.authserver.feign.ThirdPartFeignService;
import com.gulimall.authserver.vo.UserLoginVo;
import com.gulimall.authserver.vo.UserRegistVo;
import com.run.common.constant.AuthServerConstant;
import com.run.common.exception.BizCodeEnume;
import com.run.common.utils.R;
import com.run.common.vo.MemberRespVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.util.StringUtils;
import org.springframework.validation.BindingResult;
import org.springframework.validation.FieldError;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.servlet.http.HttpSession;
import javax.validation.Valid;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;
import java.util.concurrent.TimeUnit;
import java.util.stream.Collectors;

/**
 * @Date: 2022/02/04/17:50
 * @Description:
 */
@Controller
public class LoginController {

//    @GetMapping("/login.html")
//    public String loginPage(){
//        return "login";
//    }
//
//    @GetMapping("/reg.html")
//    public String regPage(){
//        return "reg";
//    }

    @Autowired
    ThirdPartFeignService thirdPartFeignService;

    @Autowired
    StringRedisTemplate redisTemplate;

    @Autowired
    MemberFeignService memberFeignService;

    @ResponseBody
    @GetMapping("/sms/sendCode")
    public R sendCode(@RequestParam("phone") String phone) {
        //TODO 1、接口防刷
        String redisCode = redisTemplate.opsForValue().get(AuthServerConstant.SMS_CODE_CACHE_PREFIX + phone);
        if (redisCode != null) {
            String[] splitCode = redisCode.split("_");
            if (System.currentTimeMillis() - Long.parseLong(splitCode[1]) > 60000) {
                return R.error(BizCodeEnume.SMS_CODE_EXCEPTION.getCode(),
                        BizCodeEnume.SMS_CODE_EXCEPTION.getMsg());
            }
        }
        String code = UUID.randomUUID().toString().substring(0, 5);
        redisTemplate.opsForValue().set(AuthServerConstant.SMS_CODE_CACHE_PREFIX + phone,
                code + "_" + System.currentTimeMillis(), 10, TimeUnit.MINUTES);
//        thirdPartFeignService.sendCode(phone, code);
        return R.ok();

    }

    /**
     * RedirectAttributes:模拟重定向携带数据
     * @param vo
     * @param result
     * @param redirectAttributes
     * @return
     */
    @PostMapping("/regist")
    public String regist(@Valid UserRegistVo vo, BindingResult result, RedirectAttributes redirectAttributes){
        if (result.hasErrors()){
            Map<String,String> errors = result.getFieldErrors().stream().collect(Collectors.toMap(FieldError::getField,FieldError::getDefaultMessage));

//            model.addAttribute("errors",errors);
            redirectAttributes.addFlashAttribute("errors",errors);
            //校验出错，转发到注册页
            return "redirect:http://auth.gulimall.com/reg.html";
        }
        //真正注册。调用远程服务进行注册
        String code = vo.getCode();
        String s = redisTemplate.opsForValue().get(AuthServerConstant.SMS_CODE_CACHE_PREFIX + vo.getPhone());
        if (!StringUtils.isEmpty(s)){

            if (code.equals(s.split("_")[0])){
                //验证码通过  调用member远程服务注册
                R r = memberFeignService.regist(vo);
                //删除验证码
                redisTemplate.delete(AuthServerConstant.SMS_CODE_CACHE_PREFIX + vo.getPhone());
                if (r.getCode() == 0){
                    //注册成功回到首页，回到登录页
                    return "redirect:http://auth.gulimall.com/login.html";
                }else {
                    Map<String,String> errors = new HashMap<>();
                    errors.put("msg", (String) r.getData("msg",new TypeReference<String>(){}));
                    redirectAttributes.addFlashAttribute("errors",errors);
                    return "redirect:http://auth.gulimall.com/reg.html";
                }
            }else {
                Map<String,String> errors = new HashMap<>();
                errors.put("code","验证码错误");
                redirectAttributes.addFlashAttribute("errors",errors);
                return "redirect:http://auth.gulimall.com/reg.html";
            }
        }else {
            Map<String,String> errors = new HashMap<>();
            errors.put("code","验证码错误");
            redirectAttributes.addFlashAttribute("errors",errors);
            return "redirect:http://auth.gulimall.com/reg.html";
        }
    }

    @GetMapping("/login.html")
    public String loginPage(HttpSession session){
        Object attribute = session.getAttribute(AuthServerConstant.LOGIN_USER);
        if (attribute == null){
            //没登陆
            return "login";
        }{
            return "redirect:http://gulimall.com";
        }
    }

    @PostMapping("/login")
    public String login(UserLoginVo vo, RedirectAttributes redirectAttributes, HttpSession session){
        //远程登录
        R login = memberFeignService.login(vo);
        if (login.getCode() == 0){
            //成功
            MemberRespVo data = (MemberRespVo)login.getData("data", new TypeReference<MemberRespVo>() {});
            session.setAttribute(AuthServerConstant.LOGIN_USER,data);
            return "redirect:http://gulimall.com";
        }else {
            Map<String,String> errors = new HashMap<>();
            errors.put("msg",(String) login.getData("msg",new TypeReference<String>(){}));
            redirectAttributes.addFlashAttribute("errors",errors);
            return "redirect:http://auth.gulimall.com/login.html";
        }
    }
}